baber/WOPTO huggingface dataset:
Patent CA-2099549-A1 (CA)
Title: System for protecting a liquid pump
Inventor: ARNETTE HENRY K
IPC: F04D15/02
Filed: 1993-07-02
Abstract: A combined air vent and pressure switch axe provided at the inlet of a liquid pump. The air vent is adapted to exhaust air from a supply line, such as a garden hose, and thereby substantially prevent the pump from running dry before water from the hose reaches the inlet. The pressure switch is connected to the motor of the pump and is adapted to signal the motor to stop if the pressure switch senses a low pressure condition at the pump inlet, such as when there is inadequate liquid or no liquid at the pump inlet. The features of the air vent and pressure switch combine to prevent the pump from being damaged by running the pump without adequate liquid supply.
Patent CA-2100891-A1 (CA)
Inventor: CHALLENGER LESROY B
IPC: H02J7/00
Filed: 1993-07-20
Abstract: ABSTRACT            An Electronic  Booster Cable comprising a Triac that is controlled by a polarize switching circuit for preventing short circuit damage to Batteries and the electronic components in a motor vehicle whenever boosting.          It is known to permit current to flow from a charged Battery to a weak Battery and it's starter motor only when the colour coded cable clamps are connected on the terminals of both Batteries correctly. The colour coded red cable clamps are connected to positive (+) terminal on each Battery and the colour coded black cable clamps are connected to negative  (-)  terminals on  both Batteries.          It is known to remain open (off) when the clamps are connected incorrectly on the Battery.  Example: the colour coded red clamps are connected to the negative (-) terminal of the Battery and the colour coded black cable clamp is connected to positive (+) terminal Battery in this invention when the user connects the colour coded clamps incorrectly on the Battery terminal.  The Batteries and their electronic components are protected and the user is alerted of the mistake by an audible sound.  The switching circuitry within the unit also detects and displays when the charging voltage and current from the vehicle administering the boost is low.  Displaying a solid red light in reference of the Alternator voltage and intermittent in reference of the charging amperage.
Patent CA-2101307-A1 (CA)
Title: Traitement acide d'un melange de reaction polymerique de poly(sulfure d'arylene)
Inventor: STUBER JOHN D
IPC: C08G75/06
Filed: 1993-07-26
Abstract: Une méthode est décrite pour produire un polymère de poly(sulfure d'arylène) ayant une teneur réduite en impuretés par mise en contact d'un mélange pour réaction de polymérisation de poly(sulfure d'arylène) avec un acide.
Patent CA-2103687-A1 (CA)
Inventor: LERNER BERNARD
IPC: B65B51/30
Filed: 1993-08-06
Abstract: ABSTRACT   A jam prevention device comprises a light beam source that emits a light beam and is located on a main frame structure of a packaging machine in the machine's sealing section. During operation, the light beam is reflected off tworeflective surfaces located on a moveable support operably connected to a prime mover. The reflected beam is received by a receiver located opposite the source.A clamping sub-assembly includes a seal bar and a reciprocatable seal pad housing. The housing is spring-mounted on the clamping sub-assembly and substantially surrounds the seal bar. The reflective devices are mounted on the housing. The prime mover moves the clamping sub-assembly towards a heater bar sub-assembly. The housing defines two cavities for receiving the reflective devices. The movement of the clamping sub-assembly brings a loaded bag into contact with the heater bar sub-assembly for the purpose of effectuating a seal of the bag. The pressure applied by the clamping sub-assembly during the meeting of the clampingsub-assembly and the heater bar sub-assembly causes the housing to move during the sealing process thereby moving the reflective devices into the cavities and disrupting the light beam. A photo-sensor is provided for detecting the reflection of the light beam during the sealing process as just described. Control structure either allows or disallows the sealing process to continue based upon detection of the light beam.
Patent CA-2106809-A1 (CA)
Title: In vivo modification of refractive power of an intraocular lens implant
Inventor: O'DONNELL FRANCIS E JR
IPC: A61F2/16
Filed: 1993-09-23
Abstract: Abstract of the Disclosure A method for changing the refractive power (spherical and astigmatical) of an intraocular implant of the type having a lens, either formed of a series of laminates of material, or having a lens that is coated with material, said material, when subject to laser energy providing for its expansion or contraction, and thereby varying the curvature of the lens, and hence, effecting an increase or decrease in its relative refractive index or power.  The direction at which the laser energy is applied to the lens can effect the relative change in the refractive power of the lens.  A modification provides haptics diametrically or concentrically extending from the optic lens, with a segment of material such as hydrogel or collagen at the juncture between the haptics and the lens, which when directionly exposed to laser energy, can cause an increase or decrease in the relative refractive power of the implanted lens.
Patent CA-2107188-A1 (CA)
Title: Ball bearing
Inventor: OBARA RIKURO
IPC: F16C33/32
Filed: 1993-09-28
Abstract: Balls 3 provided between an outer and an inner ring 1 and 2 are made of high carbon chromium bearing steel.      Depending on actual operating conditions, at least one of the outer and inner rings that require corrosion resistance and stable bonding strength is made of martensitic stainless steel with a hardness of HRC 58 or above and an eutectic carbide diameter of 10 µ m or below, thus improving the quietness and rust prevention property.
Patent CA-2107237-A1 (CA)
Title: Sequential dosing of antifungal and antiinflammatory compositions
Inventor: DAY ROBERT M
IPC: A61P31/04
Filed: 1992-03-09
Abstract: A sequential dosing medicament for topical treatment of fungal infections comprising a first pharmaceutical composition having an antifungal agent and an antiinflammatory agent, e.g. a steroid, a second separate pharmaceutical composition having only an antifungal agent as the active ingredient. Also, a method for such sequential dosing, particularly using oxiconazole as the antifungal agent and fluticasone as the steroid.
Patent CA-2107297-A1 (CA)
Title: Electroluminescent lamp encapsulated in a heat set molding
Inventor: GUSTAFSON THOMAS L
IPC: B29C39/10
Filed: 1993-09-29
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus and method of manufacturing a trim strip having an encapsulated electroluminescent lamp contained within a heat set molding. The trim strip may include a first and second heat settable layer molding bonded to a base with an adhesive attaching member. The method includes disposing an electroluminescent lamp within a molding, adding a desired amount of heat settable material and heating the mold to form a trim strip.
Patent CA-2107764-A1 (CA)
Title: Combined ozone destruction and fiber scrubbing in paper pulp mills
Inventor: HINKEY LAWRENCE A
IPC: B01D50/00
Filed: 1993-02-10
Abstract: The off gases from an ozone bleaching stage of a paper pulp mill are treated so as to simultaneously destroy ozone in the off gases, and remove fibers (32) entrained in the off gases without the need for an ozone thermal destruct system. The gases are passed into a catenary grid (20) or venturi type scrubber using an alkaline liquid (28) containing dissolved organic material as the scrubbing liquid. The scrubbing liquid preferably is a waste liquid stream from another bleaching stage, such as from an Eo stage (29) having a pH of 9.0 or higher, or a bisulfite liquid stream from a sulfite mill (29).
Patent CA-2108616-A1 (CA)
Title: Post-pressure compensator assembly for fluid control valve
Inventor: ROST ALVIN S
IPC: G05D7/01
Filed: 1993-10-18
Abstract: ABSTRACT OF THE DISCLOSURE A post-pressure compensator assembly for a fluid control valve includes a compensator piston disposed in a stepped bore of a valve body.  The piston is formed having an enlarged rim portion on the upper end thereof.  A spring reacts between a cap threaded into the bore and the piston, urging it downwardly such that the rim portion of the piston normally seats on the step of the bore.  The outer diameter of the rim portion is slightly smaller than the inner diameter of the upper portion of the bore.  Also, a plurality of notches are formed on the lower surface of the rim portion, adjacent to the step of the bore.  Thus, fluid can flow freely about and beneath the rim portion of the piston to prevent it from becoming hydraulically locked in position during use.  A load sense passageway is formed through the valve body which communicates with similar load sense passageways formed in the other portions of the fluid control valve.  A check valve structure is provided in the piston which permits the one-way flow of fluid from the selected outlet work port to the load sense passageway, thus creating a signal which is representative of the fluid pressure at the work port.  The check valve prevents the fluid pressure signals of each of the work sections from interfering with each other.
Patent CA-2109061-A1 (CA)
Title: Screen printing machine
Inventor: ZELKO STEVE
IPC: B41F15/08
Filed: 1993-10-22
Abstract: ABSTRACT OF THE DISCLOSURE   A screen printing machine has a bearing supporting a first arm structure for rotation about a vertical axis, the first arm structure comprising first arms equiangularly distributed about the vertical axis and extending radially outwardly of the vertical axis. The first arms each carry, at a free outer end thereof, a printing screen support platen. A second arm structure has second arms equiangularly distributed about the vertical axis and extending radially outwardly of the vertical axis, the second arms each carrying, at a free outer end thereof, a squeegee mechanism and a printing screen support for holding printing screen below the squeegee mechanism. An indexing drive rotates the first arm structure stepwise around the vertical axis so as to position the platens in succession in registry with the squeegee mechanisms; and interengageable pairs of connectors are provided on the first and second arms for forcibly connecting the first arms to the second arms, to counteract bending of the arms during the operation of the squeegee mechanisms.
Patent CA-2110194-A1 (CA)
Title: Amplifier devices
Inventor: FLUXMAN STEVEN M
IPC: H03F1/02
Filed: 1993-11-29
Abstract: Abstract A method of operating an amplifier comprising a plurality of polysilicon thin film transistors (27,29,31,33,39,49,53) including a current source transistor (39) and a load transistor (27,31), the method comprising operating the current source transistor (39) and the load transistor (27,31) at a gate to source voltage less than a threshold voltage (as defined) to reduce the drain conductance of said source and load transistors and thereby to improve amplifier performance parameters which depend on said drain conductance.
Patent CA-2110386-A1 (CA)
Title: Method for the Enzymatic Synthesis of Alpha-Sialylated Oligosaccharide Glycosides
Inventor: VENOT ANDRE P
IPC: A61K31/70
Filed: 1992-06-09
Abstract: Disclosed are methods for the enzymatic synthesis of alpha-sialylated oligosaccharide glycosides: Specifically, in the disclosed methods, sialyltransferase is activated to transfer an analogue of sialic acid, employed as its CMP-nucleotide derivative, to an oligosaccharide glycoside. The analogue of sialic acid and the oligosaccharide employed in this method are selected to be compatible with the sialyltransferase employed.
Patent CA-2114817-A1 (CA)
Title: Control Linkage for a Hydrostatic Transmission
Inventor: HOCH JOHN J
IPC: B60K26/00
Filed: 1994-02-02
Abstract: A hydrostatic transmission control mechanism includes a hand lever engagable by an operator, and a member to which the hand lever is directly mounted.  The member is pivotally mounted to the vehicle and is operatively coupled with the transmission for adjusting the speed of the vehicle as the operator shifts the hand lever.  The member includes a generally curved and concave cam surface which interacts with a neutral return cam follower to provide a relatively large effective lever arm extending between the member's pivot axis and the direction of force applied to the cam surface by the cam follower when the member is in positions corresponding to high vehicle velocity, thereby allowing the member to be pivoted back to its neutral position with only a relatively small force.
Patent CA-2115884-A1 (CA)
Inventor: PASTOUR VALERIE
IPC: A61K8/891
Filed: 1994-02-17
Abstract: This emulsion consists of a fatty phase containing a silicone, a non-gelled aqueous phase and an emulsifying agent chosen from an alkyl- or alkoxy-dimethicone copolyol or a dimethicone copolyol or a mixture thereof, the said fatty phase representing from 15 to 40 % by weight of the total weight of the emulsion, and consisting of at least 10 to 90 % by weight of silicone and of 0.1 to 5 % of a gelling agent consisting of a mixture of fatty acid esters of glycerol and glycol in a ratio between 75/25 and 95/5 % by weight, the said fatty acids being C16-C36 fatty acids, at least 50 % of the fatty acids being C18-C22 fatty acids. This emulsion not only has a good stability with time, but also with respect to variations in temperature.
Patent CA-2119484-A1 (CA)
Inventor: OHNISHI TOSHIHIRO
IPC: G02F1/13363
Filed: 1994-03-21
Abstract: ABSTRACT OF THE DISCLOSURE          By using an optically anisotropic film having the optical axis substantially parallel to the normal line of the film and comprising a polymer of a liquid crystal oligomerhaving positive anisotropy of refractive index and showing nematic or smectic phase, or by lamining the optically anisotropic film and a trans-parent or semitransparent polymer film, or by combining the optically anisotropic film with a uniaxially oriented retardation film, it is possible to obtain a composite retardation plate with a large viewing angle, and this retardation plate can be applied to a liquid crystal display device.
Patent CA-2119733-A1 (CA)
Title: Antibody-drug conjugates
Inventor: BARTON RUSSELL L
IPC: A61K47/48
Filed: 1994-03-22
Abstract: Abstract Immunoconjugates of antibodies or antigen-recognizing fragments of antibodies and monovalent cytotoxic drug derivatives make use of .beta.-alanine derived linkers wherein the antibody or fragment thereof is attached to the linker's carboxy group via an ester or amide group and the drug is attached through the linker's 2-position methylene group.  Intermediates, compositions and methods of use also are provided.
Patent CA-2122313-A1 (CA)
Title: Device for supplying a liquid under pressure or compressed air
Inventor: HAMELIN ROGER
IPC: B65D83/62
Filed: 1994-04-27
Abstract: A device is provided for supplying a liquid under pressure or compressed air, which comprises a rigid water impermeable container and a flexible liquid impermeable bag within the container which can be filled with the liquid to be supplied under pressure through a suitable outlet. The container is also provided with means to fill it with water under pressure from a standard water supply system, thereby squeezing the bag and evacuating the liquid therefrom under an equivalent pressure, which liquid is then supplied to a desired area. The container can also be provided with an air inlet-outlet tube through which it can be filled with air when empty and then,  when filled with water,  air pressure is built-up in the upper portion of the container that can be used to fill tires and the like.
Patent CA-2126224-A1 (CA)
Inventor: REES RICHARD W A
IPC: B60N2/22
Filed: 1992-12-16
Abstract: A device (10) for adjusting the relative incli-nation of two elements, and in particular, the rela-tive inclination of a back member (12) of an auto-motive seat pivotally connected about a rotational axis to a base member (14) of the seat for move-ment through a predefined arc is disclosed.  The de-vice can include at least an enveloping gear sector (20) for pivotal connection to the base member (14) about an axis generally coaxial with the rotational axis between the back and base members. The gear sector (20) preferably includes plastic concave teeth (24) formed thereon. An enveloping worm (22) is provided for rotatable connection to the base mem-ber (14). The worm (22) preferably is formed of at least one plastic concave worm having at least a single thread. The worm (22) is disposed in double enveloping engagement with the gear sector (20). A rotatable cam (36) is pivotally connecting the sector gear (20) to the base member (14). The rotatable cam (36) is pivotal along a predetermined arc about an axis of rotation generally coaxial with the rotational axis of the back member (12). A spring (38) biases the rotatable cam (36) in a rotational direction such that the gear (20) is urged into positive engagement with the worm (22) at any angular position of move-ment. A motion transmitting member (30) connects the gear sector (20) to the back member (14) at a position radially spaced from the rotational axis of the back member and generally is disposed between the rotational axis of the back member and the teeth (24) of the gear sector (20). A drive mechanism (40) is provided for rotating the worm (22) in clockwise and counterclockwise di-rections. A releasable lock member (44) is also provided for preventing unintentional movement of the worm. (22) in either rota-tional direction.
Patent CA-2129379-A1 (CA)
Inventor: GOLUNSKI STANISLAW E
IPC: C07C5/32
Filed: 1994-08-03
Abstract: The dehydrogenation of an alkane to an alkene, especially isobutane to isobutene, is carried out in admixture with oxygen and in the absence of added steam over a dehydrogenation and oxidation catalyst comprising a platinum group metal deposited upon a support. A catalyst comprising platinum deposited on a support which is a mixture of tin oxide and zirconium oxide possesses good activity for the dehydrogenation of an alkane, especially carried out in this way.
Patent CA-2132742-A1 (CA)
Title: Synthetic Peptides and Vaccines Against Parvovirus
Inventor: CASAL ALVAREZ JOSE I
IPC: A61K39/00
Filed: 1994-01-21
Abstract: The invention discloses synthetic peptides from autonomous parvoviruses, which are capable of inducing neutralizing antibodies against said viruses. These peptides correspond to antigenic sites located in the first 25 amino acids of the amino terminal end of the VP2 proteins of parvoviruses. When these peptides are coupled to carrier proteins or to other immunogenic complexes, they can be used in the formulation of vaccines appropriate to protect animals against the infection caused by said parvoviruses.
Patent CA-2132763-A1 (CA)
Inventor: HELMS RICHARD M
IPC: H04S7/00
Filed: 1994-09-23
Abstract: An upgrade for a stereo enabled computer system which enables such a system to produce and record surround sound channels is disclosed.   Such surround sound channels are played or recorded using an additional audio card, which controls additional speakers and/or microphones, which is added to the computer system.   Software for redirecting instructions from existing stereo application programs and sending these instructions to the existing audio device driver and the additional audio device driver is provided. A means for processing the digital audio data for either extracting surround sound channels from two channel data provided by the application, or for encoding two sets of two channel audio data recorded by the two audio cards is also included.
Patent CA-2133161-A1 (CA)
Inventor: ANDERSON OTIS R
IPC: F42D1/04
Filed: 1994-09-28
Abstract: A method and apparatus for safely controlling detonation of a downhole explosive energized device which ensures that the explosive can be detonated in a well bore only when downhole hydrostatic pressure and well fluid temperature are within limits reflecting location of the explosive energized device at designed depth for accurate positioning relative to a selected formation. The apparatus further employs a clock/timer circuit and a motion sensor circuit to ensure firing of the explosive device only within a predetermined time period and only after having remained stationary within the well casing for a predetermined period of time The apparatus further includes a memory circuit which receives and stores pressure and temperature data sets correlated with time which reflect well conditions before and after firing of the explosive device. After the tool has been retrieved from the well, this data is copied from the tool memory to a computer memory for subsequent computer processing and display.
Patent CA-2139852-A1 (CA)
Title: Fluid line connector fitting
Inventor: VARDEN ARNOLD
IPC: F16L37/098
Filed: 1992-07-10
Abstract: A fluid line connector fitting is provided which has first and second generally tubular members (10, 14), one end (16) of the second member (14) being slidably receivable within the first member (10).  Releasable locking means (46) are also provided to prevent withdrawal of the second member (14) from the first member (10). The locking means (46) are releasable by the action of a release means which reacts to the longitudinal movement of the second member (14) towards the first member (10).
Patent CA-2142325-A1 (CA)
Title: Recombinant retroviral vector against felv and/or fiv
Inventor: LEE WILLIAM T L
IPC: C12N7/00
Filed: 1993-09-21
Abstract: The present invention provides methods for treating or preventing feline leukemia virus infections comprising, administer-ing to a feline a vector construct which directs the expression of at least one immunogenic portion of a feline leukemia virus anti-gen, such that a cellular immune response is generated. Also provided are methods and vector constructs for treating or preven-ting feline immunodeficiency virus infections, either separately or in combination with the above-described methods for treating or preventing feline leukemia virus infections.
Patent CA-2143780-A1 (CA)
Title: Orthogonal rotary wiping system for inkjet printheads
Inventor: OSBORNE WILLIAM S
IPC: B41J2/165
Filed: 1995-03-02
Abstract: A rotary self-cleaning servicing system (50; 200) services inkjet printheads (34; 36) in an inkjet printing mechanism (20). A rotary service station (200) has a wiper supporting tumbler (202) that rotates about an axis (55) parallel to the printhead scanning direction (41) to wipe the printhead (34; 36) orthogonally along the length of a linear nozzle array (354; 355). A dual blade wiper (210; 212) has a forked wiping tip (230, 232) with wiping surfaces separated by recessed land portions (234). The wiper wicks ink (370) from one nozzle (352) and drags it along the linear array (354; 355) to other nozzles to lubricate the pen face (350) and to dissolve any accumulated ink residue. Any ink rolls escape through the wiping tip recessed lands (234; 236; 238) and move away from the nozzles. An optional wiper scraping system (250) pivots through cammed engagement (270, 272, 274, 275) with the tumbler (202) to selectively engage and scrape (260; 262) the wipers (220, 222; 216, 218). A method is also provided of cleaning an inkjet printhead (34; 36) to maintain pen health, particularly for pens using fast drying pigment based inks.